EP0055392A3 - Microprogrammed control unit with multiple branch capability - Google Patents

Microprogrammed control unit with multiple branch capability Download PDF

Info

Publication number
EP0055392A3
EP0055392A3 EP81109851A EP81109851A EP0055392A3 EP 0055392 A3 EP0055392 A3 EP 0055392A3 EP 81109851 A EP81109851 A EP 81109851A EP 81109851 A EP81109851 A EP 81109851A EP 0055392 A3 EP0055392 A3 EP 0055392A3
Authority
EP
European Patent Office
Prior art keywords
control unit
multiple branch
microprogrammed control
branch capability
capability
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP81109851A
Other versions
EP0055392A2 (en
EP0055392B1 (en
Inventor
Angelo Casamatta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bull HN Information Systems Italia SpA
Original Assignee
Honeywell Information Systems Italia SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honeywell Information Systems Italia SpA filed Critical Honeywell Information Systems Italia SpA
Publication of EP0055392A2 publication Critical patent/EP0055392A2/en
Publication of EP0055392A3 publication Critical patent/EP0055392A3/en
Application granted granted Critical
Publication of EP0055392B1 publication Critical patent/EP0055392B1/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/22—Microcontrol or microprogram arrangements
    • G06F9/26—Address formation of the next micro-instruction ; Microprogram storage or retrieval arrangements
    • G06F9/262—Arrangements for next microinstruction selection
    • G06F9/264—Microinstruction selection based on results of processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Executing Machine-Instructions (AREA)
EP81109851A 1980-12-18 1981-11-24 Microprogrammed control unit with multiple branch capability Expired EP0055392B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT26746/80A IT1134780B (en) 1980-12-18 1980-12-18 MICROPROGRAMMED CONTROL UNIT WITH MULTIPLE JUMP NETWORK
IT2674680 1980-12-18

Publications (3)

Publication Number Publication Date
EP0055392A2 EP0055392A2 (en) 1982-07-07
EP0055392A3 true EP0055392A3 (en) 1984-06-20
EP0055392B1 EP0055392B1 (en) 1987-03-18

Family

ID=11220155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109851A Expired EP0055392B1 (en) 1980-12-18 1981-11-24 Microprogrammed control unit with multiple branch capability

Country Status (7)

Country Link
US (1) US4446518A (en)
EP (1) EP0055392B1 (en)
JP (1) JPS57127250A (en)
CA (1) CA1171970A (en)
DE (1) DE3176017D1 (en)
IT (1) IT1134780B (en)
YU (1) YU42750B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128643A (en) * 1983-01-14 1984-07-24 Fuji Xerox Co Ltd Sequence control circuit
US4644464A (en) * 1984-06-05 1987-02-17 Burroughs Corporation Graph manager for a reduction processor evaluating programs stored as binary directed graphs employing variable-free applicative language codes
US4615003A (en) * 1984-06-05 1986-09-30 Burroughs Corporation Condition concentrator and control store for a reduction processor evaluating programs stored as binary directed graphs employing variable-free applicative language codes
EP0221577B1 (en) * 1985-11-08 1996-01-17 Nec Corporation Microprogram control unit
US4821183A (en) * 1986-12-04 1989-04-11 International Business Machines Corporation A microsequencer circuit with plural microprogrom instruction counters
US4833599A (en) * 1987-04-20 1989-05-23 Multiflow Computer, Inc. Hierarchical priority branch handling for parallel execution in a parallel processor
JPH0766328B2 (en) * 1987-11-25 1995-07-19 三菱電機株式会社 Signal processing method of processor
US5058007A (en) * 1987-11-05 1991-10-15 Raytheon Company Next microinstruction generator in a microprogram control unit
US5155818A (en) * 1988-09-28 1992-10-13 Data General Corporation Unconditional wide branch instruction acceleration
US4972342A (en) * 1988-10-07 1990-11-20 International Business Machines Corporation Programmable priority branch circuit
CA1311063C (en) * 1988-12-16 1992-12-01 Tokumichi Murakami Digital signal processor
JPH02173825A (en) * 1988-12-27 1990-07-05 Toshiba Corp Branch controller
JP3024767B2 (en) * 1989-08-29 2000-03-21 株式会社日立製作所 Address supply system
US5941986A (en) * 1993-04-30 1999-08-24 Intel Corporation Micro-code sequencer with branch-taken and branch-not-taken micro-code vectors sharing common address to eliminate taken branch penalties
US5539888A (en) * 1993-12-23 1996-07-23 Unisys Corporation System and method for processing external conditional branch instructions
US6851046B1 (en) 2000-11-14 2005-02-01 Globespanvirata, Inc. Jumping to a recombine target address which is encoded in a ternary branch instruction
GB2374950B (en) * 2001-04-23 2005-11-16 Imagination Tech Ltd Expanded functionality of processor operations within a fixed width instruction encoding
TWI233542B (en) * 2003-07-18 2005-06-01 Delta Electronics Inc Auxiliary memory device for automation controller
US9652242B2 (en) 2012-05-02 2017-05-16 Apple Inc. Apparatus for predicate calculation in processor instruction set

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570006A (en) * 1968-01-02 1971-03-09 Honeywell Inc Multiple branch technique
US3875565A (en) * 1972-12-25 1975-04-01 Hitachi Ltd Program address control system with address advance adder for read only memory

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983541A (en) * 1969-05-19 1976-09-28 Burroughs Corporation Polymorphic programmable units employing plural levels of phased sub-instruction sets
GB1448866A (en) * 1973-04-13 1976-09-08 Int Computers Ltd Microprogrammed data processing systems
US3979725A (en) * 1973-08-06 1976-09-07 Xerox Corporation Multi-way program branching circuits
IT995722B (en) * 1973-10-10 1975-11-20 Honeywell Inf Systems Italia MICROPROGRAMMED INTERIOR DECOR CALCULATOR EXPANDABLE BY RECOGNIZING AND INTERPRETING ADDED OPERATION CODES
IT1000638B (en) * 1973-12-28 1976-04-10 Olivetti & Co Spa ELECTRONIC CALCULATOR WITH DEVIATION DEVIATION OF MICROPRO GRAMS
US4038643A (en) * 1975-11-04 1977-07-26 Burroughs Corporation Microprogramming control system
US4118773A (en) * 1977-04-01 1978-10-03 Honeywell Information Systems Inc. Microprogram memory bank addressing system
US4307445A (en) * 1978-11-17 1981-12-22 Motorola, Inc. Microprogrammed control apparatus having a two-level control store for data processor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570006A (en) * 1968-01-02 1971-03-09 Honeywell Inc Multiple branch technique
US3875565A (en) * 1972-12-25 1975-04-01 Hitachi Ltd Program address control system with address advance adder for read only memory

Also Published As

Publication number Publication date
IT8026746A0 (en) 1980-12-18
JPS57127250A (en) 1982-08-07
US4446518A (en) 1984-05-01
YU42750B (en) 1988-12-31
EP0055392A2 (en) 1982-07-07
JPH0127453B2 (en) 1989-05-29
YU295881A (en) 1983-06-30
IT1134780B (en) 1986-08-13
CA1171970A (en) 1984-07-31
DE3176017D1 (en) 1987-04-23
EP0055392B1 (en) 1987-03-18

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